20647176

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{397}}^1$

素因数の和:614

約数の個数: 64

約数和(自身を含む): 56738880

約数和(自身を除く): 36091704

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 197, 264, 394, 397, 591, 788, 794, 1182, 1191, 1576, 1588, 2167, 2364, 2382, 3176, 4334, 4367, 4728, 4764, 6501, 8668, 8734, 9528, 13002, 13101, 17336, 17468, 26004, 26202, 34936, 52008, 52404, 78209, 104808, 156418, 234627, 312836, 469254, 625672, 860299, 938508, 1720598, 1877016, 2580897, 3441196, 5161794, 6882392, 10323588, 20647176]

約数ペア:

[(1, 20647176), (2, 10323588), (3, 6882392), (4, 5161794), (6, 3441196), (8, 2580897), (11, 1877016), (12, 1720598), (22, 938508), (24, 860299), (33, 625672), (44, 469254), (66, 312836), (88, 234627), (132, 156418), (197, 104808), (264, 78209), (394, 52404), (397, 52008), (591, 34936), (788, 26202), (794, 26004), (1182, 17468), (1191, 17336), (1576, 13101), (1588, 13002), (2167, 9528), (2364, 8734), (2382, 8668), (3176, 6501), (4334, 4764), (4367, 4728)]